Table-support.



A. E. ROBINSON.

TABLE SUPPORT.

APPLICATION FILED JULY 8, 1914.

Patented Jan. 19, 1915.

1,125AQL umwnto'o attouw a lee'i l lN-T FREE.

-a enn'r E. eoerivsou, or'cIucINNA rI, onio, nssieuon are THE AMERICAN TOOL woe-Ks coMPAuY, or CINCINNATI, onio, a coaroaariou or OHIO.

TABLE-SUPPORT.

Specification of Letterslatent.

Patented Jan. 19, 1915.

7 Application filed July 8, 1914. Serial No. 849,671.

To all whomct mag concern:

Be it knownthat L ALBiinT E. ROBINSON,

a'citi'zen of the'United States, and residing at Cincinnati, in the county of Hamilton and State of Ohio, haveinvented a new and useful Improvement in Table-Supports, of which'th'e following specification is a full disclosure. V D 'My invention relatesto an improvement in table supports for shaping machines.

Anobject of'the invention is tolprovide the table of a shaping machine with'an extensible leg memberor standard 'adjustablymounted within the table and capable of beingrigidly secured thereto.

Another object of my invention is to provide an extensible table support for a shaping machine with a combined adjustment, one 'for securing a quick and approximate setting, and a second fora minute and precise adjustment.

Another object of my invention is to provide a cylindrical support for the'protruding end of the table of a shaping machine, transversely movable thereon and adapted tobe positively locked to thetable at predetermined positions and releasable bya rotative motion, in combinatlon with means for rigidly clamping thesame 1n any position.

Various other features of "my invention relate to structural'details as illustrated in the preferred embodiment thereof inthe anneXed drawings, forming a part of this specification, and from the following description thereof, and insuch drawings like characters of reference denote corresponding parts throughout the several views of which Figure 1' is a front elevation of the lower portion of a shaper'with my improved table support applied. Fig. 2 is a mutilated side elevation thereof, with portions shown in section.

It is a well recognizedexpedient to sup- Fig. 3 is a section on line 3-3,

. port the free end of a laterally projecting work supporting table of a shaping machine to increase its stability andrelieve the carria'ge and saddle of excessive downward pressures or strains, and further, to maintain the alinement of the table, justifying accuracy in machining work.

\Vith my improved support, the table alincment can be delicately maintainechas the support is readily extensible to the various heights at which the table may be adjusted, and accomplished by a compound adjustment, one which is quickly and posiventional. design, and as the invention herein is not concerned with the construction of ashaper, detailed description of its complete organization is herein omitted, except as to such parts as are essential to aid in a clear understanding of the invention.

The general organization of the shaping machine, to the extent herein illustrated, comprises a main frame 1, having a forwardly extended base 2, its upper forward margin finish'edor planed to provide a rail or track 3. The forward surface of the frame has the usual ways or rails 5, 6, vertically extended, upon which the saddle 7 is movably mounted, and raised or lowered by the lifting screw 8. The saddle 7 supports the transversely movable "carriage 9 fed either by hand or power by the usual cross feed screw. Atable 10 is supported in the usual manner upon the carriage and rigidly the web at the central forward portion thereof. A bar 14- representing the table support or standard is slidably mounted within said sleeve extension. It is provided with a seriesof equally spaced transverse notches or recesses 15, along a longitudinal 16 is slidably mounted in a bore of the boss extension 17 formed integral with the web 12, and also yieldingly urged toward the axis of the supporting bar lt by aspring 18, fitting within the boss bore and retained therein by cap screw 19. The plunger or tooth intermeshing with the supporting bar l l provides a quick and definite adjustment for the bar and unites the bar with the table without the use of auxiliary hand tools for clamping or releasing. A slight rotation of the bar 14- depresses the plunger within its bore and brings the plunger into engagement with the smoother peripheral surface movements of the bar longitudinally. The definite spacing of the notches'provides interlocking points for adjusting the bar to an approximate degree between the base rail and table with the final or delicate adjustment produced by the extensibility of the bar, which herein is accomplished in pro- .viding the bar with a shoe '20 screw threaded thereon.- The shoe is horizontally split toward one end, producing aclamping element 21 for frictionally clamping the shoe upon-the bar after a proper adjustment has been made, the clamping elementbeing en gaged by; clamping or tightening screw 22.

' The shoe rests and slides upon the track 3. and is secured against removal from the bar by means of the washer 23, fitting over the end of the bar. The opposite end of the bar has a similar provision to prevent its removal from the sleeve;

V I have provided means for frictionally clamping the bar against rotation within the head, transverse to the bar 14. The memher 24: is in the nature of a bolt, its head provided with a recess ofa radius approximately-that ofthe barrl l, so as .to'engage therewith, and a screw threaded shank concentrically extended through the tubular clamping member 25, which is likewise recessed to engage with the bar 14. A nut 26 engages with the shank of the bolt clamping member 24 andagainst one end of the clamping member25, so that when the nut is tightened it will draw the clamping memtable sleeve, preferably as illustrated in Fig.

berstoward each other upon opposite sides of a diametric line of the bar to-frictionally clamp the bar against movement in any direction;

7 From. the foregoing it will be apparent that I have provided a table of aishaping machine with: an extensible supporting" member adjustably. secured upon the table, l the adjustment being preferablyzi-inpredee- Jtermined definite divisions] or'graduati'ons of table adjustment toward and from: the base, to positively secure the support against vertical movement releasable by a slight rotation. with the supportcapable of being rigidly clamped against rotation.

Having described my invention, I claim l. A machine of the class described combining a frame, a table support upon and.

projected from said frame, an extensible supporting member having indentations along a longitudinal line thereof for inter- I V meshingly-engaging with said table, releasof the bar which 1S unobstructing to the able by a partial rotation, and a shoe screw threaded upon the end of saidmember adapted to engage and slide upon the base of said frame. V v 2.' Amaohine of the class described com- .bining a frame, a table support upon and projected from said frame, an extensible supporting member having indentations along a longitudinal line thereof'for intermeshingly engaging with said table,; releasable by a partlal rotatlon, a shoe" screw 3 A machine of the class described coin binlng a frame, a table support upon and V projected from said frame, an 1 extensible supporting member having indentations.

along a longitudinal line thereof for. intermeshlngly engaging with said table, release able by a partial rotation, a shoe screw threaded upon the. end of .said .member' adapted to engage vandslide upon the base; 7

of said frame, and means for clamping said shoe agalnst rotation.

4/ A. machine of-the cha' -acter describedcombining a projected member, and an extensible supporting member therefor, interlockingly engaged therewith and releasable by a partial rotation for varying its sup porting length.

5. A machine ofcharacter described combining a projectedme'mber, and an extensible. supporting member. therefor, inter- 120. i lockingly engaged therewith and releasablef, 7

by a partial rotation, and provided with a supporting length. j V

V 6. In a machine of the character described shoe screw threadedthereon for varying its combining a projected member having an ber Within its bearing releasable by a pari3 tial rotation to Vary itssupporting length.

7. A machine of the character described combining a table, and an extensible supporting member interlockingly engaged therewith, releasable by a partial rotation for arbitrarily varying its length.

In witness whereof, I hereunto subscribe my name, as attested by the two subscribing Witnesses.

ALBERT E. ROBINSON. Witnesses:

L. A. Bron, EMMA SPENER.

supporting 10 Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C. 

